package v3.chapter2.t2;

public class Run {

	public static void main(String[] args) {
		HasSelfPrivateNum numRef = new HasSelfPrivateNum();
		ThreadA athread = new ThreadA(numRef);
		athread.start();
		ThreadB bthread = new ThreadB(numRef);
		bthread.start();
	}
}

class ThreadA extends Thread {
	private HasSelfPrivateNum numRef;

	public ThreadA(HasSelfPrivateNum numRef) {
		super();
		this.numRef = numRef;
	}

	@Override
	public void run() {
		super.run();
		numRef.addI("a");
	}
}

class ThreadB extends Thread {
	private HasSelfPrivateNum numRef;

	public ThreadB(HasSelfPrivateNum numRef) {
		super();
		this.numRef = numRef;
	}

	@Override
	public void run() {
		super.run();
		numRef.addI("b");
	}
}

class HasSelfPrivateNum {
	private int num = 0;

	// synchronized public void addI(String username) {
	public void addI(String username) {
		try {
			if (username.equals("a")) {
				num = 100;
				System.out.println("a set over!");
				Thread.sleep(2000);
			} else {
				num = 200;
				System.out.println("b set over!");
			}

			System.out.println(username + " num=" + num);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}